Plasma vs Amsteel (Dyneema) button knot soft shackles 

I use something like this with my 4x4 to set my winch hook to my tree saver strap, but you have to have something with at least one open end like a hook or a screw shackle. Works great and way stronger than a soft shackle. I’m not a highliner, but I assume they have closed or stitched ends on their lines. You could use this in conjunction with a dog bone or something, but now your re-introducing another piece of kit and putting steel back into the system.

see chart samsonrope.com/mooring/amsteel--blue

I will for sure show people how to make then break test the easier version. I don't prefer them for highlining because we use them as connectors in the middle of highlines now and the button knot is smaller and prettier :)

So, you're a grip? Ha ha

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HowNOTtoHIGHLINE I’ve been curious about this too. I found Tac Blade’s version since I use AmSteel for hammock suspension, but come to your channel for break data. Aesthetics aside, I find the simplified much easier to make, but wonder how it’ll hold up under unusual tension, even if I’ll never get to that in my hammock.

I thought the same thing. Would love to see this tested.

Knot that I’m an expert, see what I did there?, but my understanding is that burying the tails is two fold. First, it makes it so the knot can not come untied, which is a possibility without the bury. Second, it causes the rope section before the knot to be twice as large, which causes the stress point of the eye to be spread out over a larger portion of eye. The sharper the bend of the eye around the rope end, the more stress it puts on that one piece of rope at the end of the eye.

@@biggs8729 thanks for the contributing. Tried making soft shackles without burying and not even doing the crossover for the eye. Just a rope with button knot and zip ties instead of the eye. It holds no issue. Seems like the bury is non-essential and even the crossover is nonessential aswell

@@baderh7880 so, I think you might be a bit more adventurous than I am, using zip ties to hold your soft shackle on the knot, hopefully you're not using it in a life safety scenario. I would definitely rethink that and actually form the eye the way it's supposed to be or at the very least do a girth hitch around the knot.

@@biggs8729 no definitely not for any highlining. Actually for vehicle recovery.

This is overhand knot... would it be similar to monkey fist? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-K0eZz36PRYI.html

Nope. Just rotate them

10:28 Summary of the results.

@@YannCamusBlissClimbingUnfortunately, that chart doesn’t contain the diameter of line used

I know about those. They are not centered even and that's fine for anchors, but for my inov splits (connecting multiple highlines) i need soft shackle heads that sit centered.

@@HowNOT2 have you snapped any? Any noticable difference in strength?

Can you post a link about the difference between spectra and dyneema? I'll go down the rabbit hole!

HowNOTtoHIGHLINE I’ve attached a link from our Australian company (used to be known as Cortland) with all information needed on the Plasma that you used in the video. www.jeyco.com.au/products-and-services/rope/plasma-spectra-fibre-rope.html

It was pretty hard to find info on plasma. I typed in Cortland Plasma like you said above and found what you are referring to. www.cortlandcompany.com/plasma That is super interesting how they make it stronger. I found it way stiffer than amsteel and not as pleasant to work with. We went through a lot of work to compare every test we did to normal amsteel. Chart starts at 10:30 but we did not show the actual tests in an effort to keep the episode short enough to be interesting. As fancy as Plasma is, I personally wasn't like "wow, what is this vudu magic material". I think I'll stick to amsteel.

Plasma is using Honeywell's Spectra fiber

@@thanasisvarnava8292 Spectra and Dyneema are both the same fiber at a molecular level. They have separate patents because they were developed independently of one another. When I mentioned what formula I was referring to sk75, sk78, sk99 etc... those are the 'flavors' that dyneeema is available in, the more advanced (higher number) formulations have better stretch and elongation properties.

@@HowNOT2 So Plasma, along with other companies using various methods, is called heat-annealing or heat setting. It pre-stretches the line and the heat treatment makes it stronger with far less creep (molecular elongation) than standard Dyneema line. Amsteel is sk78 and not heat-set. I use heat set lines to make standing rigging for sailboats, it does much better in high tension, static applications like that. As you noticed, Plasma becomes much stiffer when tensioned (and slipperier too), so it does not hold knots as well. In Sailing, we use heat-set for static applications, Amsteel and other non-heat set dyneema for running rigging which is our dynamic lines. Outside of button knots on soft shackles (or similar) we avoid ever putting knots in dynmeea as it weakens the line by 50%, we always splice dyneema to retain full strength. Of course, that doesn't apply to soft shackles since the button knot only acts as a stopper and isn't under much tension itself... you already know that style of soft shackle you are using is the best being 230% of the single line strength. I think that what you should test is if you are reaching that benchmark based on the published line strength.

@@HowNOT2 While the patented recrystallization process of the Plasma rope increases the strength of the base fiber by aligning the molecules of the fibers, this is not why Plasma is has higher bending stiffness. The bending stiffness has more to do with the coating that is applied to the rope. This coating is designed to keep the fibers together better in order to lower the chances of the fibers or strands snagging in applications where the rope is dragged. While this does make it a little harder to work with, it does allow the rope to last longer while in use and retain its strength for longer.